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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Can you declare a generic array of type T in Java?
💡 Hint: Think about what type parameters mean in terms of concrete classes.
Question 2
Easy
What is a wrapper class in Java?
💡 Hint: Consider examples you learned about, like Integer for int.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Can you create an array of a generic type T?
- True
- False
💡 Hint: Think about how arrays work with types.
Question 2
Can static fields be of generic type?
- True
- False
💡 Hint: Consider what static members actually represent.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a generic class, design a method that demonstrates type erasure and explain what issues could arise if type information were preserved.
💡 Hint: Consider the practical effects on type integrity.
Question 2
Write a snippet of code attempting to create a static field as a generic type and explain the compilation error it produces.
💡 Hint: Reference back to the rules of static members.
Challenge and get performance evaluation